2321331022120 has 128 divisors (see below), whose sum is σ = 5860998622080. Its totient is φ = 820278144000.

The previous prime is 2321331022097. The next prime is 2321331022121. The reversal of 2321331022120 is 212201331232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2321331022091 and 2321331022100.

It is not an unprimeable number, because it can be changed into a prime (2321331022121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1706710 + ... + 2748730.

It is an arithmetic number, because the mean of its divisors is an integer number (45789051735).

Almost surely, 2^{2321331022120} is an apocalyptic number.

2321331022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321331022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2930499311040).

2321331022120 is an abundant number, since it is smaller than the sum of its proper divisors (3539667599960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321331022120 is a wasteful number, since it uses less digits than its factorization.

2321331022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042187 (or 1042183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2321331022120 its reverse (212201331232), we get a palindrome (2533532353352).

The spelling of 2321331022120 in words is "two trillion, three hundred twenty-one billion, three hundred thirty-one million, twenty-two thousand, one hundred twenty".